don't lock in negative. >> joshua brown, and then there's facebook. now, 2011 revenue, i have a $3.76 billion. how do you value facebook? do i want to look at revenue or advertising metrics? we recognize that the stock was priced way too high. how would you look at it in terms of valuing the company? >> i want to come back to the points that the other gentlemen make because there's an important story here. on facebook it's very simple. if you believe they can earn a dollar in 2013 or 2014, take it on a pure price to earnings multiple and understand the fact that you take a wild guess. other than that, it's really tough. momentum stocks, once the spell is broken and the momentum is going, there's no true way to value it. i don't think that will happen to facebook. just getting back to stocks or not, i don't want to come off like i'm really gloomy. there are some things that are working. i'll tell your viewers very quickly. look at the biotech sector. no one ever talks about it. if you look at the etfs that own all of the bioteches, they are all making